Jining Rongan Electromechanical KJD127 mine explosion-proof and intrinsically safe computer

Please read this manual carefully before using the computer.

1. Purpose

The KJD127 explosion-proof and intrinsically safe computer (hereinafter referred to as the computer) is mainly composed of a computer host,a network transceiver,a power supply and other parts. It has the functions of storing and reading data,network optical fiber transmission function,and 485 communication function.

The computer implements enterprise standards GB3836-2010 and Q/ZMD056-2013.

2. Environmental conditions

• Temperature: 0℃～40℃;

• Average relative humidity: ≦95%RH;

• Atmospheric pressure: 80kPa～106kPa;

• Suitable for environments with risk of gas and coal dust explosion;

• The pollution level is level 3;

• The installation category is Category III;

• Use in places without significant vibration and impact.

3. Main technical parameters

3.1 Technical parameters

1) Power supply voltage: AC127V;

2) Power: 100W;

3) Computer configuration

CPU： Intel®Atom™D510 1.66GHz；

Memory: 2 GB SODIMM (expandable to 4G);

Hard drive: 500G (expandable to 1T);

Chip: Embedded Gen3.5+ GFX Core technology,Direct X 9/Pixel Shader 2.0 compliant;

Audio: Line-in,Line-out,Mic-in (default configuration does not lead out).

4) Ethernet optical port:

--Optical signal wavelength: 1310nm;

--Transmit optical power: -20~-5dBm;

--Light sensitivity: -30～20dBm.

5) RS485 interface:

--Communication rate: 1200,2400,4800,9600 optional;

--Signal peak-to-peak value: 1.0V~5.0V.

6) USB interface:

--Communication rate: 1.5Mbps;

--Interface specification: USB1.0.

7) Video interface (non-intrinsically safe):

--Interface specifications: Standard VGA (for connecting explosion-proof displays).

8) Intrinsically safe parameters: USB port: a) Uo: 5.5 VDC,Io: 0.3A; b) Co: 20 μF,Lo: 1 mH;

485 port: a) Uo: 5.5 VDC,Io: 0.1A; b) Co: 10 μF,Lo: 10 mH.

4. Product classification

4.1 Type:Mine flameproof and intrinsically safe type "Exd[ib] I Mb".

4.2 Product model:KJD127

5. Product structure and principle

5.1 Product structure and dimensions

It consists of a shell,a computer host,a power supply,a network transceiver,etc. Its external structure is shown in Figure 1.

Overall dimensions: approximately 720mm×493.5mm×294mm (length×width×height);

Weight: 112kg

5.2 Function

The main fiber optic network interface of the computer is connected to devices with network communication and has the function of storing and reading data. At the same time,the network fiber transmission function is available.